| Hazel Park Developments Limited | Construction | 2018 |
| Hazel's Properties Ltd | Real estate | 2024 |
| HB Group Services Construction Ltd | Construction | 2022 |
| Hbtl Limited | Real estate | 2021 |
| HC Magenta Limited | Real estate | 2025 |
| HC Renovation Ltd | Construction | 2024 |
| HC Solutions and Blasting Ltd | Construction | 2026 |
| HC3 Associates Ltd | Health & social care | 2015 |
| HCS Teip Ltd | Professional & scientific | 2025 |
| HD CAD Services Ltd | Professional & scientific | 2024 |
| HD Cars Global Ltd | Transport & logistics | 2025 |
| HDG Home Improvements Limited | Construction | 2025 |
| Hdoors Limited | Extraterritorial | 2018 |
| Head Salon Ltd | Other services | 2020 |
| Head Turners UK Ltd | Other services | 2023 |
| Headliner Hotels Limited | Hospitality | 2006 |
| Headquarters Hair & Beauty Studio Limited | Other services | 2010 |
| Headquarters Parbold Ltd | Other services | 2024 |
| Health First ALW Community Interest Company | Health & social care | 2011 |
| Health Working Limited | Health & social care | 2020 |
| Healthcare World Online Limited | Wholesale & retail | 2011 |
| Healthier Solutions Group Ltd | Administrative & support | 2026 |
| Healthy Minds Club Limited | Other services | 2020 |
| Healvital Vorsorge Ltd | Professional & scientific | 2024 |
| Heartmind Consulting Ltd | Health & social care | 2024 |
| Hearts in Need Ltd | Real estate | 2011 |
| Heat Harmony Ltd | Construction | 2023 |
| HEAT2000MAINTENANCE Ltd | Extraterritorial | 2011 |
| Heatglo Plumbing and Heating Limited | Construction | 2009 |
| Heathfield Manor Park Limited | Real estate | 2013 |
| Heaton 2014 Limited | Financial services | 2014 |
| Heaton 2025 Ltd | Financial services | 2025 |
| Heaton Group Developments Limited | Construction | 2013 |
| Heaton Group Holdings Limited | Real estate | 2016 |
| Heaton Group Manchester Limited | Real estate | 2013 |
| Heaton Investments 2025 Limited | Financial services | 2025 |
| Heaton Platt Bridge Limited | Wholesale & retail | 2015 |
| Heaton Street Garden Collective Limited | Households | 2016 |
| Heatons Ceilings Ltd | Construction | 2007 |
| Heatons Motor Company (Wigan) Limited | Wholesale & retail | 2011 |
| Heatons Transport Service Ltd | Transport & logistics | 2015 |
| Heattech Boilers Limited | Construction | 2025 |
| Heatwave Commercial Properties Limited | Real estate | 2013 |
| Heatwave Homes Limited | Construction | 2014 |
| Heatwave Residential Properties Limited | Real estate | 2013 |
| Heatwave Ventures Ltd | Wholesale & retail | 2026 |
| Heaven V Hell Fitness Limited | Arts & recreation | 2014 |
| Heavenly Bodies Fitness Limited | Arts & recreation | 2020 |
| Heavenor | Professional & scientific | 2026 |
| Hedleysbros Ltd | Transport & logistics | 2022 |
| Heggie Domestic Solutions Ltd | Real estate | 2020 |
| Helen Ferneyhough Associates Ltd | Financial services | 2024 |
| Helios Renewable Energy Systems Ltd | Construction | 2025 |
| Helium Miracle 100 Limited | Construction | 2010 |
| Helium Miracle 113 Limited | Construction | 2011 |
| Helix Building Services Limited | Construction | 2019 |
| Helix Catalyst Limited | Professional & scientific | 2025 |
| Helix Property Developments Limited | Real estate | 2021 |
| Hello Pharmacy Limited | Other services | 2016 |
| Hellwellmedical Limited | Health & social care | 2025 |
| Help My Rating Ltd | Administrative & support | 2016 |
| Helpful Conversations Ltd | Health & social care | 2010 |
| Helsby and Hawkes Developments Ltd | Construction | 2024 |
| Helsby and Hawkes Homes Ltd | Real estate | 2024 |
| Hemlock Digital Limited | Information & communication | 2025 |
| Hemn.D Developers Ltd | Real estate | 2020 |
| Hendly Market Street Limited | Wholesale & retail | 2025 |
| Henry-Hussain Digital Services Ltd | Information & communication | 2020 |
| Henrys Vapes Limited | Extraterritorial | 2019 |
| Herbyonline Limited | Information & communication | 2019 |
| Heritage Experience Days Ltd | Administrative & support | 2025 |
| Heritage Roofing Restoration Ltd | Construction | 2024 |
| Heron Marketing Services Ltd | Information & communication | 1999 |
| Hesketh Engineering and Fabrication Limited | Professional & scientific | 2008 |
| Hesketh Refrigeration Ltd | Construction | 2010 |
| Hesuba | Professional & scientific | 2025 |
| Heswall Chiropody Limited | Health & social care | 2002 |
| Hevn Limited | Information & communication | 2026 |
| Hewittstorage Limited | Administrative & support | 2019 |
| Heycube Limited | Information & communication | 2021 |
| Heyes Logistics Ltd | Transport & logistics | 2026 |
| HF People Consulting Limited | Administrative & support | 2019 |
| HFA Property Management Ltd | Real estate | 2025 |
| HG & C Developments Limited | Construction | 2021 |
| HG Block Management Limited | Households | 2017 |
| HG Premier Lettings Limited | Real estate | 2012 |
| HG1 Private Investments Limited | Construction | 2018 |
| HG12 Private Investments Limited | Real estate | 2014 |
| HG13 (BAC) Private Investments Limited | Construction | 2021 |
| HG14 (TP) Private Investments Limited | Construction | 2022 |
| HG15PQSG Ltd | Construction | 2022 |
| HG17EMM3 Ltd | Construction | 2022 |
| HG18EMM1 Ltd | Construction | 2023 |
| HG19BSP2 Ltd | Construction | 2023 |
| HG2 Private Investments Limited | Construction | 2019 |
| HG20EMBA Ltd | Construction | 2024 |
| HG21FSHS Ltd | Construction | 2025 |
| HG22FSHL Ltd | Construction | 2025 |
| HG23BLCD Ltd | Construction | 2025 |
| HG24 CBW Ltd | Construction | 2025 |